In Plain Sight is an all-new crime drama starring Mary McCormack as Mary Shannon, a U.S. Marshal attached to the highly secretive Federal Witness Protection Program (WITSEC). While Mary loves her job, she knows better than anyone that it's not easy leading a double life—especially since getting shot at on a regular basis is all in a day's work.
Mary Shannon, who is based in the greater Albuquerque/Santa Fe area, protects and manages relocated Federal Witnesses who come from all over the country. The witnesses under her care can be anything from career criminals, congenital liars, thieves and murderers to those who have had the misfortune of witnessing or falling victim to a crime. For the innocents, testifying means leaving behind everything and everyone they know, cutting off all contact, changing identities and relocating to the unfamiliar southwest to build a new life as the reward for their good deed. But no matter what walk of life—or what side of the law—these people come from, they all have one thing in common: Someone wants them dead.
Luckily, Mary doesn't have to bear the burden of this huge responsibility alone. Along with her partner, Marshall Mann (Fred Weller) who couldn't be more her polar opposite, Mary helps her witnesses establish new lives—with varying degrees of success or satisfaction on the witnesses' part—while protecting them from a myriad of threats ranging from people seeking revenge or trying to thwart the course of justice to the traumas of everyday life. While Mary and Marshall spend a good portion of their time bantering and disagreeing about most things, they make a great team that always gets the job done.
The U.S. Government enlists WITSEC to hide one of Latin America's feistiest political activists and everything goes South when the budding Evita moves to the bad part of town.
When a Wall Street blue-blood rats on his boss' investment fraud and hides out in WITSEC, he volunteers to give up his great fortune, that is until a ransom from his past life comes calling.
A world-class counterfeiter witness – whose girlfriend's infidelity moved her to confess – is suspected in the murder of another "friend". Even the clues seem forged, until Mary and Marshall realize they may be hiding a witness from the government itself.
Mary serves as Technical Advisor to The Marshals Service new training video, while Marshall arranges to get one of Witsec's charter members, a geriatric goodfella (Martin Landau) from the Philly Mob, to his son's funeral.
The barely legal daughter of Mary's witness - a Miami racketeer - finds herself in a dangerous romance, just as Raph's mother visits to prepare an engagement feast for the surprised Mary.
After briefing a new witness, whose testimony is contingent on visitation rights with his son, Mary learns the son is missing and sets out to find him.
When Brandi is arrested by Agent O'Connor for drug trafficking & murder, Mary races to find a way out for Brandi and the sordid motive for his vendetta.
When a series of murders seem to follow a new ex-con witness, including stabbing Mary's friend, she and Marshall have to figure out if he's the killer in time to save his next victim.
When a bridge collapses and plunges many to their death, the victims' families come after the engineer, who, once in WITSEC, attempts to clear his name no matter what the consequence.
An Orthodox Jewish witness, whose estranged wife refuses to enter Witsec, soon finds himself being followed by a mysterious man (guest star Richard Schiff) who answers to a higher authority.
When Stan's first witness turns up dead, with his badge amongst the bones, he becomes the Chief suspect - forcing Mary & Marshall to dig deeper into a 20-year-old love triangle.
When a huge building collapse traps one of Mary's witnesses under the rubble and out in the open, his injury plays second to the threat of a professional assassin up on the roofs.
When a hot mom-on-the-prowl witness is having problems with her brood, Mary soon finds herself playing babysitter to three difficult kids.
When a marijuana mastermind from the NorCal grasslands is unable to testify without the pot to neutralize his Severe Anxiety Disorder, Mary finds herself in the weeds.
When a witness turns up dead, Mary ditches administrative leave to solve a 10 Little Indians story-until her own brand of Post-Traumatic-Stress disorders her plan.